Ultra-fast carrier decay, recently discovered in a hydrogenated amorphous silicon waveguide, can be exploited for pattern-effect-free all-optical signal processing based on optical Kerr nonlinearity. In this study, we utilized a 10 Gbit/s RZ-OOK data stream as a pump for degenerate four-wave mixing in a low-loss hydrogenated amorphous silicon waveguide. The propagation loss of the waveguide used was 1.0±0.2 dB/cm at 1550 nm. Unlike crystalline silicon waveguides, no noticeable difference was observed in the BER characteristics between the cases of PRBS 27−1 and 231−1.
© 2012 Optical Society of America
Original Manuscript: December 2, 2011
Revised Manuscript: February 5, 2012
Manuscript Accepted: February 7, 2012
Published: April 12, 2012
Satoshi Suda, Ken Tanizawa, Youichi Sakakibara, Toshihiro Kamei, Kouichi Nakanishi, Emiko Itoga, Takeshi Ogasawara, Ryohei Takei, Hitoshi Kawashima, Shu Namiki, Masahiko Mori, Toshifumi Hasama, and Hiroshi Ishikawa, "Pattern-effect-free all-optical wavelength conversion using a hydrogenated amorphous silicon waveguide with ultra-fast carrier decay," Opt. Lett. 37, 1382-1384 (2012)